Construction and process for uniting sintered powdered metal parts

Claim 1

A PROCESS OF SUBSTANTIALLY INSEPARABLY JOINING TWO COMPONENT PARTS OF SINTERED POWDERED MATERIAL INTO A COMPOSITE WORKPIECE, SAID PROCESS COMPRISING FORMING UPON SAID PARTS OPPOSING PROJECTIONS AND DEPRESSIONS WITH THE PROJECTION ON ONE PART ALIGNABLE WITH THE DEPRESSION ON THE OTHER PART, PLACING THE TWO PARTS IN JUXTAPOSITION WITH SAID PROJECTION ALIGNED WITH SAID DEPRESSION, PRESSING THE PARTS TOGETHER WITH THE PROJECTION OF SAID ONE PART MOVING INTO CONTACTING ENGAGEMENT WITH A SURFACE OF THE DEPRESSION ON THE OTHER PART, AND CONTINUING THE PRESSING AFTER SUCH CONTACTING ENGAGEMENT TO EFFECT LATERAL DEFORMATION OF THE END PORTION OF SAID PROJECTION INTO PENETRATING INTERLOCKING ENGAGEMENT WITH A SIDE WALL OF SAID DEPRESSION, SAID PROJECTION HAVING A RECESS IN THE END THEREOF AND SAID DEPRESSION HAVING A BOTTOM SURFACE WITH A PROTUBERANCE THEREIN ALIGNABLE WITH SAID RECESS AND MOVABLE INTO LATERALLY-DEFORMING PENETRATING ENGAGEMENT WITH THE SIDE WALL OF SAID RECESS WHILE DISPLACING LATERALLY THE MATERIAL OF SAID SIDE WALL IN RESPONSE TO SAID CONTINUED PRESSING.